CVE-2026-54309: stato di sfruttamento e disponibilità della patch

CVE-2026-54309 · CVSS 10.0 CRITICAL · EPSS <1%

n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP transport mode, the MCP endpoint accepts session initialization and tool invocation requests without any authentication. Any network-reachable client, or any website visited by the user, can establish an MCP session and invoke browser-control tools. Where the n8n AI Browser Bridge extension is installed and a browser connection is active, an unauthenticated caller can access browser-control capabilities including navigation, JavaScript evaluation, and cookie and storage access against the user's real browser profile. This issue only affects instances where @n8n/mcp-browser is run with the HTTP transport (--transport http). This vulnerability is fixed in 2.25.7 and 2.26.2.

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Cosa ha pubblicato PlainSec su CVE-2026-54309

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KEV ed EPSS vengono ricontrollati ogni giorno. Scheda aggiornata il 2026-08-11.